/usr/lib/python2.7/dist-packages/traits/tests/test_class_traits.py is in python-traits 4.6.0-1.
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Unit tests for the `HasTraits.class_traits` class function.
"""
from __future__ import absolute_import
from traits import _py2to3
from traits.testing.unittest_tools import unittest
from ..api import HasTraits, Int, List, Str
class A(HasTraits):
x = Int
name = Str(marked=True)
class B(A):
pass
class C(B):
lst = List(marked=False)
y = Int(marked=True)
class TestClassTraits(unittest.TestCase):
def test_all_class_traits(self):
expected = ['x', 'name', 'trait_added', 'trait_modified']
_py2to3.assertCountEqual(self, A.class_traits(), expected)
# Check that derived classes report the correct traits.
_py2to3.assertCountEqual(self, B.class_traits(), expected)
expected.extend(('lst', 'y'))
_py2to3.assertCountEqual(self, C.class_traits(), expected)
def test_class_traits_with_metadata(self):
# Retrieve all traits that have the `marked` metadata
# attribute set to True.
traits = C.class_traits(marked=True)
_py2to3.assertCountEqual(self, traits.keys(), ('y', 'name'))
# Retrieve all traits that have a `marked` metadata attribute,
# regardless of its value.
marked_traits = C.class_traits(marked=lambda attr: attr is not None)
_py2to3.assertCountEqual(self, marked_traits, ('y', 'name', 'lst'))
|